creator (77 episodes, 2002-2007)
written by (22 episodes, 2002-2007)
writer (11 episodes, 2003-2007)
head writer (53 episodes, 2002-2005)
writer (5 episodes, 2003-2005)
written by (2 episodes, 2003-2004)
writer (13 episodes, 2005-2007)
head writer (5 episodes, 2006-2007)
written by (3 episodes, 2006)
story editor (13 episodes, 2003-2004)
writer (3 episodes, 2007)
story (1 episode, 2006)
writer (1 episode, 2004)
premise (1 episode, 2006)
story (1 episode, 2007)